I have used several Zinc lozenges while trying to get my son to use one. He, being 4, is a particular one and I end up using what he will not...which is generally fine with me. With this lozenge, however, I did not use it either because after a few moments it gets quite bitter. If it were a lemon citrus bitter I would be alright with it, but it is quite unpleasant and none of us will use them. A waste of money for us.